City size comparison

compared to

Oslo is about 7 times smaller than Hanoi.

Hanoi is approximately 3,360 sq km, while Oslo is approximately 454 sq km, making Oslo 13.52% the size of Hanoi.
Tip: This to-scale comparison of Hanoi vs. Oslo uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Oslo vs. Hanoi

Flip Comparison · See true size
See Oslo on top of Hanoi
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Cost of Living Comparison · 7 categories - 2026 data
Hanoi is 71.9% cheaper than Oslo
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